"Dangerously Hot": Heat Warning Extended Until Next Week

Southern California gets hit by temperatures in excess of 100 degrees

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It was quite hot in the San Gabriel Valley on Saturday, June 29, 2013, when NBC4's Beverly White snapped this pic. A heat wave was expected to continue through next week.

Updated at 5:38 PM PST on Saturday, Jun 29, 2013

There appears to be no escape from the heat for Southern Californians this weekend.

Weather officials have extended the excessive heat warning to Tuesday – and it could go longer – as temperatures are expected to rise past 100 degrees in inland areas.

AM Forecast: Dangerously Hot

Some of the hottest weather in years is hitting Southern California this weekend. An excessive heat warning is in effect for the valleys and deserts. NBC4's Carl Bell has the forecast for Saturday, June 29, 2013. (Published Sunday, Jul 7, 2013)

Heat a Factor in Massive Power Outages

Thousands of SoCal residents lost power for hours Friday after a sweltering heat wave beat the Southland with triple-digit temperatures. Beverly White reports from Cerritos for the NBC4 News at 11 p.m. on Friday, June 28, 2013. (Published Friday, Jun 28, 2013)

National Weather Service meteorologist John Dumas said that many parts of California will experience high temperatures until at least 9 p.m. Tuesday.

An excessive heat warning was in effect for inland areas -- in Orange, Riverside, and San Bernardino counties -- through 8 p.m. Monday, with maximum temperatures set for 105 to 115 on Sunday.

In Los Angeles and Orange counties, a similar excessive heat warning was in effect until 9 p.m. Monday.

Scorching heat was blistering much of the Southwest United States, where highs between 115 and 120 degrees were expected for parts of Arizona, Nevada and California through the weekend.

The forecast called for Death Valley to reach 128 degrees Saturday as part of a heat wave that has caused large parts of the western U.S. to suffer. Death Valley's record high of 134 degrees, set a century ago, stands as the highest temperature ever recorded on Earth.

Blazing temperatures in both the afternoon and overnight hours will continue into next week while record or near-record highs are also expected, according to a hazardous health warning issued Saturday by the National Weather Service.

Dr. Jonathan Fielding, director of the Los Angeles County Department of Public Health, said the extreme heat is not just an inconvenience, but a potential health hazard.

“Everyone should remember to take special care of themselves, children, the elderly and their pets,” he said.

National Weather Service meteorologist Curt Kaplan said that temperatures should begin dropping slightly on Monday, and the trend should continue through the end of the week.

“It will still be warm for this time of the year,” he said. “We will see very little relief.”

The Associated Press and City News Service contributed to this report.